Finding the Fourth Proportional to 71,301.29, 107,057.07 and 39,772.95
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Solution
The fourth proportional to 71,301.29, 107,057.07 and 39,772.95 is: 59,718.07
Step by Step Solution
- Step 1: Write the proportion equation
71,301.29 : 107,057.07 = 39,772.95 : x - Step 2: Convert to fraction form
71,301.29/107,057.07 = 39,772.95/x - Step 3: Cross multiply
71,301.29x = 107,057.07 × 39,772.95 - Step 4: Simplify right side
71,301.29x = 4,257,975,492.26 - Step 5: Solve for x
x = 4,257,975,492.26/71,301.29 - Step 6: Final answer
x = 59,718.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.